High rate, long-distance quantum key distribution over 250 km of ultra low loss fibres 论文
2009New Journal of Physics引用 293顶会
Quantum Information and CryptographyQuantum Computing Algorithms and ArchitectureQuantum and electron transport phenomena
摘要
We present a fully automated quantum key distribution prototype running at 625MHz clock rate. Taking advantage of ultra low loss (ULL) fibres and low-noise superconducting detectors, we can distribute 6000 secretbits s?1 over 100 km and 15 bits s?1 over 250 km.